Automatic computing and registering scale



0. MALCHER.

AUTOMATIC COMPUTING AND REG'ISTERFNG SCALE.

APPLICATION man FEB.19. 1915.

1,335,067. Patented Mar. 30, 1920.

13 SHEETS-SHEET 1.

0. MALCHER.

AUTOMATIC COMPUTING AND REGISTERING SCALE.

APPLICATION FILED FEB. I9, I9I5. 1,335,067. Patented Mar. 30, 1920.

I3 SHEETS-SHEET 2- 0. MALCHER. AUTOMATIC COMPUTING AND REGISTERINGSCALE.

APPLICATION FILED FEB. I9, I9I5. n

Patented Mar. 00, 1920 g I3 SHEETS-SHEET 3.

O. MALCHER.

AUTOMATIC COMPUTING AND REGISTERING SCALE. APPLICATION FILED FEB. 19.1915.

1,335,067. Patented Mar. 30, 1920.

I3 SHEETS-SHEET 4.

0. MALCHER. AUTOMATIC COMPUTING AND REGISTERING SCALE.

APPLICATION men ran. 19, 1915. Pate Mar. 30' 1920 I3 SHEETS-SHEET 5.

O. MALCHER.

AUTOMATIC COMPUTING AND REGISTfRING'SCALE.

APPLICATION FILED FEB. I9, I915.

1,335,067. Patented Mar. 30, 1920.

- is SHEETS-SHEET 6.

i722 Masai? jndanifizf' O. MALCHER.

AUTOMATIC COMPUTING AND REGISTERING SCALE.

APPLICATION FILED FEB. I9, 1915. 1,335,,067. Patented Mar. 30, 1920.

I 3 SHEETSSHEET I.

0. MALCHER.

AUTOMATIC COMPUTING AND REGISTERING SCALE. APPLICATION FILED FEB. 19.l9l5.

1,335,067. Patented Mar. 30, 1920.

I 3 SHEETS-SHEET 8.

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- d M65563 I fizdenZZzr 0. MALCHER.

AUTOMATIC COMPUTING AND REGISTERING SCALE.

APPLICATION FILED FEB. 19. I9I5. 1,335,067.

Patented Mar. 30, 1920.

I3 SHEETS-SHEET 9.

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nw T E E H A s T E E H s 3 0. MALCHER.

AUTOMATIC COMPUTING AND REGLSTHHNG SCALE.

APPLICATION FILED FEB. 19, 1915.

Patented Mar. 30, 1920.

I3 SHEETS-SHEET l1.

0. MALCHEH.

AUTOMATIC COMPUTING AND REGISTERING SCALE.

APPLICATION FILED FEB.19, I915.

Patented Mar. 30, 1920.

I3 SHEETS-SHEET I2.

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0. MALCHER.

AUTOMATlC COMPUTING AND REGISTERING SCALE. APPLICATION HLED FEB. 19,l9l5.

1,335,067. Patented Mar. 30, 1920.

I3 SHEETS-SHEET l3.

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I-II m OTTO MALCHER, OF CHICAGO, ILLINOIS, ASSIGNOR T MALCHER ADDIN GMACHINE COMPANY, OF CHICAGO, ILLINOIS, A COREORATION OF ILLINOIS.

AUTOMATIC COMPUTING AND It ?!GISTERING SCALE.

Specification of Letters iatent. I Piatgntgd E131, 30, 1928.,

Application filed February 19, 1915. Serial in. ease;

To all whom it may concern Be it known that l, O'r'ro MALCHER, a citizenof the United States, residing at Chi cago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements inAutomatic Computing and Registering Scales, of which the following is aspecification.

This invention relates to computing scales such as are used in. retailstores and similar places, and is an improvement of the device shown inmy application Serial No. 2.882. .The invention consists substantiallyin the combination and arrangement hereinafter described, illustrated inthe accompanying drawings, and more particularly set forth in theappended claims.

In the drawings- Figure 1 is a fragmentary end elevation of a scaleembodying the present invention.

Fig. 2is a fragmentary front elevation, partly in section, of a portionof the scale shown in Fig. 1, showing the computing drum and cooperatingparts.

Fig. 3 is a front elevation of the portion of the device shown in Fig.2.

Fig. 4 is a vertical section on line l4 of Fig. 2,

Fig. 5 is, a section on line 5- 5 of Fig. 4. Fig. 6 is a section on line66 of Fig. 4.

Fig. 7 is a perspective of one of the slides shown in Fig. 4.

Fig. 8 is a sectional view on line 88 of F i 1.

ig. 9 is a vertical sectional view on line 5) '901. Fig. 8.

Fig. 10 is a detailed perspective of a printing hammer locking dog:

Fig. '11 is a vertical sectional view showing one of the mutilated gearsfor operating a printing segment.

Fig., 12 is a section on line 12 -42 of Fig. 17.

Fig.'13 is a sectional view on line l3 13 of Fig. 8, showing theoperating mechanism for the platen.

Fig. 14 is a sectional view on line 1414 of Fig. 9.

Fig. 15 is a vertical sectional view on line 15-15 at Fig.

Fig. 16 is a vertical sectional view on line 1616 of Fig. 2 showing theoperating rack for the scale drum.

Fig. 17 is a sectional view on line 17'17 of Fig. 15.

-- drum showing the stop rings. Fig. 31 is an elevation of a drum unit Iindex member.

Fig. 18 is a detail perspective of a locking lever for a part of theprinting mechan sm.

Fig. 19 is a detail sectional view on line 1919 of Fig. 8 showing one ofthe totalizer units and the locking mechanism connected therewith.

Fig. 20 is a detail perspective of a printing hammer. t

Fig. 21 is a view of a card or ticket such as is printed. by thisinvention.

Fig. 22 is a fragmentary section on line 22-22 of Fig. 3.

Fig. 23 is a-fragmcntary section on line 23-23of Fig. 3. 3

Fig. 24 is a section on line 24-2t of Fi 22.

ig. 25 is a section on line 25-25 of I ig. 26 is a fragmentary sectionon line 26-26 of Fig. 2e. a

Fig. 27 is a front elevation of a cam for controlling the operation ofthe lever shown in Fig. 26.

Fig. 28 is a fragmentary section on line 28-28 of Fig. 22.'

Fig. 29 is a fragmentary section on line 29-29 of Fig. 28. v

Fig. 30 is a vertical sectional view of the shown in Fig. 30.

Fig. 32 is a section on line 32-432 of Fig. 30.

This invention includes a computing scale .which comprises the usualscale pan and lever mechanism and a drum arran ed to be controlled bythe weight of an article on the scale pan. The drum carries a series of"graduated units corresponding to different prices and an index deviceslidably mounted-- to cooperate with the different graduated units, and1s operatively connected with a recording or printing device. to recordthe values of articlesplaced upon the scale pan.

The invention also comprises a number of totalizers adapted to becontrolled by the ()ne totalizer is provided for each clerk or personwho will use the scale, and each totalizer at the end of a given periodwill show the total of all the sales made by the clerk to whom saidtotalizer is assigned. A key-board is also provided upon which values ofarticles not to be weighed upon thescale are set lip-and are inserted inthe total of sales of theparticular clerk to whose credit the sale is tobe ascribed. The invention also comprises an indicator for showing tothe customer the price per pound that he is being charged for thearticle weighed upon the scale, andalso for exhibiting to him the totalprice. The total price is also printed upon a ticket, together with thedate and the character designating the person who made the sale. Thisticket will ordinarily be handed to the customer, who will present it tothe cashier when he pays for the article purchased.

In the drawing, the numeral 1 designates a base carrying uprights 2 uponwhich the computing scale is mounted. A scale beam 3 and a scale pan 4are carried by the base 1 and the scale beam is connected to a rod 5which in turn connects with two crossbars 6 and 7, Figs. 1 and 2. Thecross-bar 6 is supported at o posite ends by springs 8 whichcounter-balance the weight of an article on the scale pan and yield anamount proportional to the weightof such article in the way usual insuch devices. The ends of the rod 7 carry racks 9 which mesh withminions 10 on each end of the shaft 11. Carried by the shaft 11 torotate therewith, are disks 12, each disk carrying a stop member 13. Itwill be seen that when an article is placed upon the scale pan the disk12 will be rotated a distance proportional to the weight of sucharticle. Coaxial with the shaft 11 and surrounding it, is a hollow shaft14 mounted to rotate independently of the shaft 11. Secured to the shaft14 to rotate therewith, are pinions 15 and arms 16. Also carried by theshaft 14 is a drum 17 mounted upon a spider 18. The drum 17 5 iscomposed of a plurality of graduated units one of which is shown moreclearly in Figs. 30, 31 and 32. Each of these units consists of. fourmetallic rings 20, 21, 22 and 23. The ring 20 is of uniform width andconstitutes a support for the other three rings. One unit is providedfor each of the prices per pound of articles the value of which thescale is adapted to compute. In the deviceas shown in Fig. 2, graduatedunits corresponding to prices from eight to forty cents per pound areshown. llt is evident that the capacity of the scale may be varied tosuit any particular trade. The -unit shown in Figs. 30 to 32'is the unitused cents per pound. In this unit, as in all other units, the ring 23corresponds to the unit decimal order of the value to be computed, andis used to ascertain the digit in the value of the article which standsin the cents column. Thering 22 is used to ascertain the digit whichstands in the tens column ahd the ring 21 ascertains the digit whichstands in the hundreds or dollar column. The ring 23 has a plurality ofstop members 2% exin computing values of articles at forty 4 Learner/tending around the drum. In Fig. 30, only of an article whose'value isonecent at-the particular price which the graduated unit represents. Thering 22 also carries a plurality of stop members 25 extending around thedrum, and each of the stop members 25 is provided with ten stops, eachof which is of a width corresponding to the movement of the drum causedby .the weight of an article whose value is ten cents. It will beevident that there will be one stop on the ring 22 for each ten stops onthe ring 23. v

The ring 21 carries a plurality of stops each of which corresponds tothe movement at the drum caused by the weight of an article the value ofwhich is one dollar. All or" the units 19 are arranged upon the spider18 and constitute a drum adapted to be r0- tated, in a manner to bedescribed, an amount limited by the stops 13 on the disks 12. Since thestops 13 are moved by the weight of an article upon the scale pan adistance proportional to the weight, it will be evident that the drumwill be permitted to movea corresponding distance before it is stoppedby the arm 16 contacting with the stop members 13. lln other words,means is provided for limiting the rotation of the drum to an amountproportional to the weight of an article upon the scale pan.

Carried by the spider 18 are a plurality of screw rods 26 carryingadjustable weights 2? for adjusting the center oi? gravity of drum 19 tocoincide with the axis of rotation thereof. Slidably mounted on shafts28 and 29,'which extend longitudinally of the drum, is an index member30 (Figs. 2, 4:, 5, 6, and 7). This index'member carries a pointer 31coZi-perating with a series of numerals 32 upon the face of the easingsurrounding the drum, to indicate the price at which the scalecalculates the value of an article upon the pan... A price number isprovided for each of the drum units and the shaft 29 is provided with aplurality of cross grooves 33 with which cooperates a the slides 35, 36and 37 are projected to cooperate with the stop rings.- lt will now beapparent that when the index member 30 is set opposite a graduated unitof the drum and the drum rotated a distance corresponding to the weightof an article upon the scale Leanne? pan, the numberof stops on the ring23 that will have passed the zero position, that is the positionoccupied by the slide 35, will be equal to the value of the article incents, computed at the price to which the particular drum unitcorresponds. It will be understood that the outmost stop on the ringcorresponds to the zero position of the slide coiiperating therewith,and since each tenth stop is in this zero position, it will be evidentthat when a number of stops equal to the value of the article havepassed the zero position the slide will stand opposite the stopcorresponding to the digit in the units column of the numberrepresenting the value of the article, and if the slide is'projectedforwardly until it is arrested by the stop, it will be moved adistanceproportional to the digit in the units column of that number. In likemanner, the stop 36 will move a distance proportional to the digit inthe tens column and the stop 37 a distance proportional to the digit inthe hundreds column of the number representing the value of the articleupon the scale pan at the price to which the drum unit with which thestops cooperate corresponds. Carried by the index member 31, is a lug40, and connected to the lug 40 is a band so 42 extending entirelyacross the front of the drum and supported by rollers 43 (Fig. 4). Ateach end of the drum the band 42 extends through to the opposite sideand returns along the drum at the side opposite the index member 81 in aposition. correspondingto that on the side next to the index member 31.A lug 44 is attached to the band 42 in a position corresponding to thelug -10 but on the opposite side of the drum, and an index finger 45 isattached to the lug 44 and is adapted, to travel lengthwise of the drumcasing simultaneously with the movement of the finger 31, but in anopposite direction. A series of figures simi- 45 lar to figures 32 shownin Fig. 2, 18 arranged on the drum casing opposite the figures 32 but inreverseorder thereto. It will be evident that when the finger 31 ismoved to indicate a given price, the finger 45 will correspondingly moveto indicate the same price on the opposite side of the drum. It willthus be apparent that the finger 45 will indicate to the customer theprice at which the scale is being set at the same time that the finger31 indicates the price to the salesman. A section 46 is provided nearthe center of the drum upon which a scale of pounds and ounces isarranged. Openings 471 and 48 are provided on opposite sides of the sodrum casing to permit the salesman and the customer to read the weightoithe article upon the scale pan in pounds if they so desire.

A series of shafts, a, b, and 0 extend longitudinaily of thedevice, andslidably mounted on these shafts within the index member 30, are aseries of pinions 50, 51 and 52, meshing respectively with the slides37, 36 and 35. it Will be apparent that the rotation ofthe shafts a, band 0 will therefore be controlled by the movement of the slides 37, 36and 35 respectively.

A printing device shown in Figs. 8, 9, 15

and 17 is provided the operation of which these pinions (seeparticularly Figs. 8, 9

and 17). Carried on a shaft 68 which extends through the casin 61 are aplurality of mutilated gears 69 igs. 9, 11 and 17). Secured to each ofthemutilated gears 69 is'a type segment 70, each of which type segmentscarries a plurality oftype bars 71 mounted to slide in the segments 7 O.The type bars 71 are normally held in retracted position by springs 72(Figs. 9 and 14). It will now be apparent that when one of the shafts a,b; c, d or e is rotated, the corresponding type segment 70 will also bemoved a distance proportional to the amount of rotation of the shaft.The movement of the type segments 70 will bring the type bars 71successively into printing position and each, of the type segments 70carries numerals ranging from zero to nine. It will thus be seen that ifthe shaft a, for instance, is permitted by the slide 37 to move adistance corresponding to a particular number of 1 stops on the scaledrum, the type segment 70 corresponding thereto will be moved a distanceto bring a corresponding number into printing position.

Each of the racks 67 is provided with a no spring 73 which normallytends to move the rack forwardly to rotate the printing segment upwardlyand force the slidesin the index member 30 into contact with the stopson the scale drum. The racks 67 are normally held in retracted positionagainst the tension of the spring 73 and the slides in the index member30 are held out of contact with the drum by means of cams 74 carriedbythe shaft 75. Mounted to slide on the shafts 68 and 75 (Figs. 8, 9, 15and 20), are i a plurality of type hammers 76 one for each of the typesegments 70. These type hammere 76 are resiliently drawn forwardly byspring 77 and are normally held in retracted position by cams 78 mountedon the shaft 75 to rotate therewith. A detent 79 is provided for each ofsaid type hammers 76 and eoiiperates with the projection 80 thereon tohold the type hammer in retracted posi- 13o tion (Figs. 9 and 10). Eachof the detents 79 carries alateral projection 82 adapted to contact withthe next adjacent detent. The mutilated gears 69carry cam projections 83(Figs; 9 and 11) adapted to cooperate with pins 8 1 carried by thedetents 79. It will be apparent that when one of the racks67 movesforwardly and rotates trated position and no number will be printed inthe decimal order corresponding to the rack which is not moved, unless arack corresponding to a higher decimal order has been moved. In case arack corresponding to a higher decimal order has been moved, theprojection 82 will release the detent of the lower decimal order and thetype hammer will move forwardly and printer zero in the decimal order inwhich no movement of the rack 67 has taken-place.

Mechanism for rotating'the shafts 68 and 75 is provided as follows,attention being called especially to Figs. 1, 3, 8, 12 and 17. Rotatablymounted on the shaft 68 is a hand crank 85 having a projection 86extending through a slot 87 in the casing 61. The pro-' j ection 86carries a dog 88 within the casing 61. The shaft 68 has a ratchet member89 rigidly mounted thereon and with which the dog 88 is adapted tocooperate to rotate the shaft 68. A. pawl 90 is secured to the casing 61to prevent backward movement of the ratchet member 89. A spring 91 isattached to the hand crank 85 and normally tends to draw it to the rightas viewed in Fig. 1. The amount of movement of the hand crank 85 islimited to a quarter revolution by the slot 87. A gear 92 is secured tothe shaft 68 to rotate therewith, and a pinion 93 meshing with the gear92 is secured to the shaft 75 to rotate therewith. The ratio of thegears 92 and 93 is sugh that a quarter turn of he gear 92 will cause acomplete revolution of the gear 93. It will be apparent that when thehand crank 85 is drawn forwardly or to the left in Fig. 1, no motion ofthe shafts 68 and 75 will take place, buton the return stroke of thehand crank 85 under the influence of the spring 91, the dog 88 willcause the shaft 68 to rotate a quarter revolution and simultaneously theshaft 75 will be given a complete rotation.

In addition to the printing segments controlled by the shafts a, b, c, dand c, three other printing segments are controlled by Each of these thehand operated racks 60 (Figs. 8 and 15). These racks cooperate withmutilated gears and printingsegments in the same way as the rackscontrolled by the shafts, but are operated by finger holds 95. Theposition of the racks 60 is indicated by scales 96 on top of the racksand pointers 97 on the casing 61. The racks 60 are held in theiradjusted position by spring pawls 98. The printing segments controlledby the racks 60carry type mem bers adapted to print dates. the of theprinting segments carries abbreviations of the twelve months of theyear; another carries figures from one to three to represent the digitsin the tens place of the various days of a month,

' and the other carries digits from zero to mers previously described,but instead of coiiperating with type bars carried by printing segments,they are long enough to contact directly with the printing ribbon.

The printing slides or bars 98' are operated in the same way as the ty ehammers (EX-- cept that instead of a dog 9 they are provided with a triplever 99, Figs. 15 and 18. rinting bars is provided with a designatingcharacter such as the letters A and B, and although but two are shown inthe drawing, any number of these printing bars maybe provided, theobject eing to provide one for each of the salesmen who is assignedtoone scale. a particular salesman is operating the scale, he firstreleases the trip lever 99' corresponding to his individualcharacteristic letter. so that simultaneously with the printing of thesale which he makes, his characteristic letter will be printed upon theticket. The

mechanism for releasing the trip levers 99.

will be more fully explained later. In line with the printing positionof the type, is a ribbon 100 and a platen 101. The ribbon is carried onspools 102 and 103 mounted on the casing 61 (Fig. 17). The spools 102and 103 carry bevel gears 104 and 105 respectively adapted to cooperatewith bevel gears 106 and 107 on the shaft 108 which 15 adapted to heslid longitudinally within 104 and 105 into operative relation with theshaft. A spring detent 110 cooperates with notches 1.11 in the shaft 108to hold it in its the shaft 108 will depend upon the position Then r thecasing 61 to alternately bring thegears a may be changed to alternatelyfeed the ribbon from one spool to the other. The shaft of adjustment ofthe shaft 108, and this 108 carries a ratchet wheel 112 (Figs. 13, 15and 17). This ratchet wheel is rotated by the spring pawl 113 carried bythe slid ing rack bar 114 which is in turn reciprocated by a cam 115carried on shaft 7 5. A spring pawl 116 prevents a backward movement ofthe ratchet 112. Spring 117 normally holds the sliding rack bar 114. inretracted position against the cam 115. It will be apparent that foreach. revolution of the shaft caused by the movement of the hand crank85, the ribbon, will be fed a slight distance. The sliding rack bar 111at the same time rotates the platen 101 to feed the paper forwardly. Thebar 114 cooperates with a pinion 118 secured to the shaft 119 upon whichthe-platen 101 is free to rotate (Figs. 8, 13 and 15). Secured to theshaft 119 is an arm 120 carrying a pawl 121 adapted to'cooperate withratchet teeth 122 carried by the platen 101. It will be apparent thatfor each reciprocation of the bar 11a the platen 101 will be given apart of a revolution 1n the direction to feed the paper 123 carried bythe roll 12% forwardly. Guide rolls 125 and 126 hold the paper incontact with the platen 101 and a knife ege 127 1s provided againstwhich the portion of the paper fed forwardly may be torn off. The cam115 is so positioned on the shaft 75 I that the feeding of the paper andthe mow ing of the type ribbon takes place after the other operations ofthe printing mechanism, so that when the paper is fed for wardly. thenumber set up 1n the printing mechanism will have previously beenprinted thereon.

Mounted in the casing 61 near the bottom thereof, is a shaft 29 (seeparticularly Figs. 1. 15 and 17), and secured to this shaft 18 an arm129 adapted to cooperate with a cam 130 carried by the hand crank 85.Secured to the shaft 129 are two dctents 131 (Figs. 1, 2 and 17 Thedetents 131 are adapted to cooperate with ratchet teeth 132 carried onthe, periphery of the disks 12'.-

From the shape of the cam 130 it will be ap' i parent that the firsteffect of the forward movement of thealj and crank will be to force thedetent s 131 into contact with the ratchet teeth 132 and thus hold thedisks 12 firmly in position to check the movement of the drum. which iseffected in a manner which will now be described, reference being hadparticularly to Figs. 1,2 and16. Meshing with the pinion 15 on the shaft14, is a sliding rack bar 133 norn'ially held in the position shown inFig. 16 against the tension of the spring 134, by the detent 135 carriedon the shaft 136. Referring to Fig. 1, it will be seen that the shaft136 has an arm When the shaft 136.is rocked by the cam 138,

the detent 135 will be moved out of contact with the notch in the rack133 and the rack will be drawn to the left in Fig. 16 to rotate thepinion 15 and the scale drum. Two racks 133-are provided, one at eachend of the drum to cooperate with the two pinions 15, and mounted on theshaft 7 5 in position to cooperate with the racks 133 are mutilatedgears 140 (Figs. 2 and 16). These mutilated gears are arranged to meshwith the teeth 141 on the rack 133 and return the rack to its originalposition durin the latter part of the rotation ofthe shaft 7 5, andafter the operation of the printing mechanism.

It is thought that the operation of the device thus far described willnow be apparent. to be weighed upon the scale pan and the weight of thearticle will cause the disks 12 to rotate a distance proportional to theweight. The operator then adjusts the index member 30 to a positioncorresponding to the price of the article upon the scale pan. He thenreleases the trip lever 09, by mechanism not yet described, to free theprinting slide 98 corresponding to his designating character, the typesegments carrying the date type having been previously set for the dateupon whichthe transaction is made. The

date segments are set once each day and are. allowed to remain sothroughout the entire The operator will place an article of the forwardmovement of the hand crank 85 will be to force the detents 131 into contact with the teeth 132 and hold the disks 12 in the position to whichthey have been been set, the shaft 136 will be rotated by thecam 138 andthe racks 133 will be moved by the springs 13-1 to rotate thescale drumuntil it is stopped by the projections 13 on the disks 12. Duringthemovement of the parts thus far described, the slides 50, 51 and 52have been held out of contact with the drum because the shafts (I, b and0 have been held from rotation by means of the cams 74 and the racks 67.As soon as the hand'crank 85 starts on its return movement, however, thecams "(twill more out of contact with the projections 1,42 on'the racks67. This will free the racks 67. and allow them to, more under theinfluence of the spring ,73,tthe amount of movement being determined bythe distance the slides 50, 51 and 52 are permitted to move before theycontact with the scale drum. The type segments are rotated by the racks67 a distance proportional to the corresponding movements of the slides50, 51 and 52. During the movement of these segments, the cams 69release the detents 79 corresponding with the segments moved and-freethe type hammers 76 from the influence of these detcnts. If there is nomovement in any particular slide the type hammer for that decimal orderwill not be released unless there has been a movement of a slide of ahigher decimal order, in which case all of the type hammers of a lowerdecimal order will be released in the manner] previously described.After the movement of the racks thus described has taken place the nexteffect of the return movement of the hand crank 85 will be to releasethe type hammers from the cams 78 and permit them to move forwardlyunder the influence of the springs to print the number set up in theprinting mechanism. Further movement of the hand crank 85 will completethe revolution of the shaft and return the racks 67 and the hammers 78to their original position. The last part of the rotation of the shaft75 will also operate the slide 11- by means of the cam 115 to shift theprinting ribbon and to move the part of the paper that has received theimpression, past the knife edge 127. The last effect of the rotation ofthe shaft 75 will be to cause the mutilated gears 110 to contact withthe. teeth 1-i1 and return the rack 133 and the scale drum to theiroriginal position.

In addition to printing the amount of the sale made by a salesman,together with a designation character showing by whom the sale was made.it is desirable to know at i the close of the day the total amount ofthe sales made by each salesman. It is also desirable to be ableto enterin the totals not only the sales of articles which are weighed upon thescale. but also sales of other articles which are not sold by weight.The present invention includes mechanism for accmnplishin these results.which will now be described. Mounted upon the right of the computingscale. as viewed in'Figs. 2 and 3, are a plurality of totaliiersdesignated generally by the reference numeral 150 and a key-board 151:the particular are provided in each totalizen and each of 70 these rackscooperates with a. pinion 156 carried on one of the shafts a, b, e, (Zor e. A spring 157 (Figs. 2'2 and 23) normallytends to force the racks155 to the right as viewed in Fig. 22. The racks are held in retracted75 position against the influence of the springs 157 by the gears 156,and when the shafts a, b, c, d and e are freed to rotate by the movementof the hand crank 85 in the manner previously described, the racks 15 5will be moved to the right as viewed in Fig. 22. It Will thusbe seenthat during a computing operation of the scale, three of the racks 155.those controlled by the shafts a,

7) and 0. will be moved forwardly a distance ing portion 161 secured tothe end of the rack 155. A series of totalizer units, one for each ofthe racks 155, is mounted in each of the totalizers 150. Each totalizerunit, Fig. 21, comprises a shaft 162, a pinion 163. a number wheel 16-1,a one-toothed 10o gear 165, and a star gear 166. These parts are allsecured together to rotate in unison. The ends of the shafts arejournaled in bearing members 167 (Figs. 8, and

These bearing members are carried on a vertically movable bar 168 andmeans to be described is provided for shifting this bar to bring thepinions 163 into contact with the teeth 158 or 159 as the operator maydesire. As shown inv Figs. 19 and 22, the bearing members 167 areprovided with slots 169 in which the ends of the shafts 162 are mountedto slide and rotate. Each of the bearing n'ien'ibers 167 is alsoprovided with a'slot 170 for a purpose to be pointed out.

As will appear more clearly from Fig. 8, each totalizer unit is providedwith a pair of side plates 171, and these side plates are connectedtogether at their ends by spacing members 172 and 173. plates andspacing members constitutes a rectangular frame pivotally mounted at oneend upon the shaft 75. which extends through an elongated opening 176(Fig. 19) in the side members 171. apparent that the side members 171are free to swing about the shaft 75 as an axis and are also free tomove longitudinally of the side members on said shaft a distanceproportional to the length of the slots 176. 130

The 90 Each pair of side It will be The shafts 162 are journaled in theside when they are moved longitudinally or pivotally upon the shaft 7 5.It will be apparent that when the bar 168 is moved up and down to throwthe pinion 163 in and out of contact with the teeth 158 and 159, theside bars 171 will be rotated slightly about the shaft 75. A lockingmember 177 (Fig. 19)

is pivoted on the side bar 171 and has a projection 178 adapted to enterthe notches in the star wheel 166. A spring 179 normally tends to holdthe locking member 177 out of engagement with the star wheel. A detent180 is pivoted on the side plate 171 and has a projection 181 adapted tocooperate with a projection 182 on the locking member 17 '7 to hold thelockmg member in engagement with the star wheel to prevent rotation ofthe totalizer unit. The detent 180 is also provided with notches 183,one on each side of the projection 181. On the opposite side of thepivot from the projection 181. the detent- 180 carries a laterallypiojecting lug .18} extending into one of the grooves 170 of the bearingmember 167. When the bar 168 is moved vertically. either upwardly ordownwardly from its central position, the lug 184 will move in unisontherewith, being held in one of the slots 17 0. The totalizer shaft 162will also'move in unisonwith the bar 168. but the spacing member 173 onwhich the detent 180 is pivoted will move a greater distance than thelug 184, due to the fact that it is carried by the side plate 171 whichmoves about the shaft 75 as a pivot. The detent 180 will therefore berotated about the spacing member 173 a distance sufficient to bring oneof the notches 183 inte position to receive the projection 182 on thelocking member 177. lVhen this occurs the spring 17 9 will withdraw theprojection 178 from the star wheel 166 and leave the totalizer unit freeto rotate about its axis. In this way the totalizer unit is locked fromrotation when it is in central position, but is free to rotate when itis moved upwardly or downwardly into contact with the rack teeth 158 or159. Means is provided for placing-the totalizer units in operativeconnection with the rack teeth 158 or 159 during the movement of theracks to the right as viewed in Fig. '22, and for automaticallyrestoring the totalizer unit to its intermediate position during thereturn movement of the racks. \Vhen the totalizer unit is in operativeconnection with the upper teeth 159, the totalizer will be rotated inadding direction, that is in the direction to bring Successively highernumbers on the munber wheels 16+ into position beneath the openings 185in the casing (Fig. 3). The numeral wheels are provided with figuresranging from zero to nine to correspond with the stops on the scaledrum. and the type bars in the printing mechanism. Means is provided forcarrying from one totalizer unit to the unit of the next higher decimalorder, that is for rotating the unit of the higher decimal order adistance sufficient to add one unit for each revolution of the totalizerunit of the lower order.

This is accomplished through the sliding movement of the side plates.171 on the shaft 175. Springs 186 (Fig. 8) are attached to spacingmembers 187 secured to the side members 171 and also at their other endto rings 188 passing around the shaft 75. These springs normally tend todraw the side members together with their totalizer units, to the left,as shown in Fig. 8. A locking lever 189 (Figs. 8 and 22) is pivoted onthe shaft 75 and has a catch 190 adapted toengage a rectangularextension 191 of the spacing member 172. This looking member normallyholds the side plates l71'in the position shown in Fig. 19 against thetension of the spring 186. A spring 192 holds the member 189 in lookingposition. Av disk 193 is pivotally mounted on the spacing member 187 ofeach totalizer unit and each disk carries a projection 194 in positionto cooperate with the tooth 195 of the one-toothed gear 165. Each disk193 carries two lugs 196 (Figs. 8 and 19) extending through slots 197 inthe side lates of the totalizer unit, and projecting through asufficient distance to cooperate with the extension 198 (Fig. 22) of thelocking lever 189 of the next higher decimal order. It will be apparentthat for every revolution of a totalizer unit, the tooth 195 will passthe projection 194 and rock the disk 193,

causing one of the lugs 196 to press downwardly on the extension 198 andfree the. catch member 190 from the rectan ular extension 191 whichholds the totahzer unit of the next higher decimal order, in position.The totalizer unit will thus be free to move under the influence of thespring 186 and since this movement will take place when the pinion 163is in contact with the rack 155, the totalizer unit of the higherdecimal order will be rotated by the pinion traveling along the rack.The slot 176 is made of the proper length to cause the totalizer unit tobe thus rotated a distance to add one digit to the totalizer unit thusrotated. In this way one digit is added to the next higher decimal orderfor each revolution of the totalizer unit. It may at times be desirableto operate the totalizer in a subtracting instead of an addingdirection. It will be apparent that this result will be accumplishedwhen the totalizer is moved downwardly into contact with the rack 155instead of upwardly. This will rotate the

